Features: Equipped with LCD display, you can see the electric quantity, voltage, current clearly. Help testing the voltage, current and capacity of battery to help users know the state of battery-in-time. Suitable for mobile and portable equipment, e-bike, balance-cars, cleaning machines, instruments, and so-on. This coulomb counter is suitable for all kinds of electric vehicles, emergency-power supplies, energy storage power supplies, medical-equipment, etc. The voltage range is 8-100V. With stand high voltage and high current. Specifications: Material:Plastic Size:Approx.3.33x6.12x1.4 5cm/1.31x2.4x0.57inch Color: Black Package Includes: 1x Battery Capacity Tester note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.